Environmental Ch 12- Air

1. Smog is...

• A type of acid rain
• A chemical reaction between the water in the air, pollution and the sun.
• A type of cloud

2. Acid precipitation is when....

• Rain or snow have become acidic from pollution.
• When rain or snow have become more basic or alkaline because of pollution.
• A type of air mass

5. The PH scale measures...

• How fast the wind speed is on a particular day.
• The amount of air pressure
• How acidic or basic a substance is.

6. Which layer of the atmosphere has the ozone gases?

• The troposphere
• The stratosphere
• The thermosphere

What is air pollution?

• Any harmful substance that builds up in the air 
• pollen, dust, gases
• industrial pollution
• chemicals in the water

Which ones are consider primary air pollutants?

• Nitrogen oxides 
• Sulfur dioxides
• Carbon monoxide 
• all are correct!!!!

Smog is air pollution that hangs over urban areas and reduces visibility.

• TRUE
• FALSE

—The Clean Air Act- regulates vehicle emissions.

• true
• false

The 78% of the normal composition of air is...?

• Oxygen 
• Nitrogen
• Carbon dioxide
• Argon

Which is NOT an example of a way to help prevent radon gas in homes?

• Sealing cracks
• Ventilation
• Plastic in crawlspace
• Air fresheners